package com.br.cashflowdao.hibernate.dao.util;

import java.util.logging.Level;
import java.util.logging.Logger;
import org.hibernate.cfg.AnnotationConfiguration;
import org.hibernate.SessionFactory;

/**
 * Hibernate Utility class with a convenient method to get Session Factory object.
 *
 * @author Marcel Sena <marcel.sena at marcel.sena@gmail.com>
 */
public class HibernateUtil {
    private static final SessionFactory sessionFactory;

    static {
        try {
            // Create the SessionFactory from standard (hibernate.cfg.xml) config file.
            sessionFactory = new AnnotationConfiguration().configure().buildSessionFactory();
        } catch (Throwable ex) {
            // Log the exception. 
            Logger.getLogger(HibernateUtil.class.getName())
                    .log(Level.SEVERE, "Initial SessionFactory creation failed.", ex);
            throw new ExceptionInInitializerError(ex);
        }
    }

    /**
     *
     * @return <code>SessionFactory</code>
     */
    public static SessionFactory getSessionFactory() {
        return sessionFactory;
    }
}
